Window-sash lock



Get. 9 1923. 1,470,380

A. P. KUTSCHE ET AL WINDOW SASH LOCK Filed Dec. 20. 1921 e u al died faa li so is M ilm OX cares ALFRED P. KUTSGHE AIJD ARTHUR A. WINTER, SF IIILilfiUKEE, HESS Nliw'llil.

WINDOVJ-SAt-ZLTE Application filed December 20, 1921.

T G 1071/0771 it nmg concern:

Be it known that we, Anni-inn P. Knrsonn and r.LRTI-IUR A. ritium, bothcitizens of the United States, and residents of Milwaukee, in the countyof Milwaukee and State of lVisconsin, have invented certain new anduseful Improvements in Vindow-Sash Locks; and. we do hereby declare thatthe following is a tull, clear, and exact description thereof.

ur invention relates to a new and improred window sash lock for lockinga window in closed position and which may also be used for supportingthe upper sash in any intern'iediate position to which it may beadjusted.

The primary object of the invention is to provide simple andvinexpensive device of this character which may be easily assembled andinstalled.

Tilorc specifically the invention comprises a bolt and housing, eachmade from a single casting, the device being assembled by simply layingthe bolt in suitable guideways provided in the housing. The belt beingheld and accurately guided between the housing and the upper rail of thelower sash to which the device is secured.

The invention will be more fully understood upon reference to theaccompanying drawing. in which- Figure 1 represents a vertical sectionalview thru the invention as it appears when attached to a window, and

Figure 2 is a bottom plan view of the housing with the bolt laidtherein.

Referring more particularly to the drawing, the numeral 5 indicates aratchet bar which is secured to the lower portion of the stile 6 of theupper sash. A housing? is formed with lateral flanges 8 which aresecured by screws, or the like, to the upper rail 9 of the lower sash,and is provided with opposed slots 10 and 11in its end walls whichslidahly receive a bolt 12, the projecting end 13 of which is adapted toenany one of the teeth of the ratchet bar 5. The bolt is provided with ahead 14c for manipulating the same, and also has a cross head 15tormedthereon, and having shoulders 16 which are normally held in engagementwith the adjacent end wall of the housing by means of a coil spring 17which surrounds the shank of the bolt.

LOCK.

Serial No. 523,658.

The housing 7 and the bolt 12 are each cast in a single piece. Inassembling the coil spring 1'? is first placed about the shank of thebolt and the latter is laid in the slots 10 and ll and the housingattached to the rail 9 in such a position that the projecting end of thebolt will engage one of the teeth on the ratchet bar to hold the uppersash in the position to which it has been adjusted. The bolt also hasformed, thereon, a lug 18 which is guided over the upper surface of therail 9 and in connection with the cross head 15, which is guided withinthe housing, provides an accurate guide for the bolt when it ismanipulated by means of the head 14.

From the above description, it will be seen that we have provioed anextremely simple construction which may be manufactured at a minimumcost and quickly installed.

While we have shown and described specilically one form in which ourvinvention may be embodied, it will be understood that minormodifications in form and proportion may be made without departing fromthe scope of the invention as claimed.

lVe claim:

In a device of the class described, a one piece rectangular hollowhousing having an open bottom and slotted end walls, a one piece boltslidably held within said housing and having an enlarged tongueprojecting through the slot in one of said end walls and having anenlarged shouldered portion adapted to contact with the inner side ofsaid end'wall to limit the outward movement of said bolt, said bolthaving a straight reduced portion extending through the slot in theother end wall and terminating in an operating head in axial alignmentwith such reduced portion, and a coiled spring surrounding said reducedportion and bea *ing at one end against said last mentioned wall and atits other end against said shouldered portion, said bolt having adownwardly extending lug adjacent said operating head adapted tocooperate with said shouldered portion to gu de said bolt when saidhousing is attached to a flat surface.

In testimony that we claim the foregoing we have hereunto set our handsat Milwaukee. in the county of Milwaukee and State of Wisconsin.

ALFRED P. KUTSCHE. ARTHUR A. WINTER.

